unsigned SDiagsWriter::getEmitDiagnosticFlag(DiagnosticsEngine::Level DiagLevel,
unsigned DiagID) {
if (DiagLevel == DiagnosticsEngine::Note)
return 0; // No flag for notes.
StringRef FlagName = DiagnosticIDs::getWarningOptionForDiag(DiagID);
if (FlagName.empty())
return 0;
// Here we assume that FlagName points to static data whose pointer
// value is fixed. This allows us to unique by diagnostic groups.
const void *data = FlagName.data();
std::pair<unsigned, StringRef> &entry = DiagFlags[data];
if (entry.first == 0) {
entry.first = DiagFlags.size();
entry.second = FlagName;
// Lazily emit the string in a separate record.
RecordData Record;
Record.push_back(RECORD_DIAG_FLAG);
Record.push_back(entry.first);
Record.push_back(FlagName.size());
Stream.EmitRecordWithBlob(Abbrevs.get(RECORD_DIAG_FLAG),
Record, FlagName);
}
return entry.first;
}
unsigned SDiagsWriter::getEmitFile(SourceLocation Loc) {
SourceManager &SM = Diags.getSourceManager();
assert(Loc.isValid());
const std::pair<FileID, unsigned> &LocInfo = SM.getDecomposedLoc(Loc);
const FileEntry *FE = SM.getFileEntryForID(LocInfo.first);
if (!FE)
return 0;
unsigned &entry = Files[FE];
if (entry)
return entry;
// Lazily generate the record for the file.
entry = Files.size();
RecordData Record;
Record.push_back(RECORD_FILENAME);
Record.push_back(entry);
Record.push_back(FE->getSize());
Record.push_back(FE->getModificationTime());
StringRef Name = FE->getName();
Record.push_back(Name.size());
Stream.EmitRecordWithBlob(Abbrevs.get(RECORD_FILENAME), Record, Name);
return entry;
}
void SDiagsRenderer::emitNote(SourceLocation Loc, StringRef Message) {
Writer.Stream.EnterSubblock(BLOCK_DIAG, 4);
RecordData Record;
Record.push_back(RECORD_DIAG);
Record.push_back(DiagnosticsEngine::Note);
Writer.AddLocToRecord(Loc, Record, SM);
Record.push_back(Writer.getEmitCategory());
Record.push_back(Writer.getEmitDiagnosticFlag(DiagnosticsEngine::Note));
Record.push_back(Message.size());
Writer.Stream.EmitRecordWithBlob(Writer.Abbrevs.get(RECORD_DIAG),
Record, Message);
Writer.Stream.ExitBlock();
}
unsigned SDiagsWriter::getEmitCategory(unsigned int category) {
if (Categories.count(category))
return category;
Categories.insert(category);
// We use a local version of 'Record' so that we can be generating
// another record when we lazily generate one for the category entry.
RecordData Record;
Record.push_back(RECORD_CATEGORY);
Record.push_back(category);
StringRef catName = DiagnosticIDs::getCategoryNameFromID(category);
Record.push_back(catName.size());
Stream.EmitRecordWithBlob(Abbrevs.get(RECORD_CATEGORY), Record, catName);
return category;
}
unsigned SDiagsWriter::getEmitFile(const char *FileName){
if (!FileName)
return 0;
unsigned &entry = Files[FileName];
if (entry)
return entry;
// Lazily generate the record for the file.
entry = Files.size();
RecordData Record;
Record.push_back(RECORD_FILENAME);
Record.push_back(entry);
Record.push_back(0); // For legacy.
Record.push_back(0); // For legacy.
StringRef Name(FileName);
Record.push_back(Name.size());
Stream.EmitRecordWithBlob(Abbrevs.get(RECORD_FILENAME), Record, Name);
return entry;
}
unsigned SerializedDiagnosticConsumer::getEmitFile(StringRef Filename) {
// NOTE: Using Filename.data() here relies on SourceMgr using
// const char* as buffer identifiers. This is fast, but may
// be brittle. We can always switch over to using a StringMap.
unsigned &entry = State->Files[Filename.data()];
if (entry)
return entry;
// Lazily generate the record for the file. Note that in
// practice we only expect there to be one file, but this is
// general and is what the diagnostic file expects.
entry = State->Files.size();
RecordData Record;
Record.push_back(RECORD_FILENAME);
Record.push_back(entry);
Record.push_back(0); // For legacy.
Record.push_back(0); // For legacy.
Record.push_back(Filename.size());
State->Stream.EmitRecordWithBlob(State->Abbrevs.get(RECORD_FILENAME),
Record, Filename.data());
return entry;
}